O-Level And Cse Examinations Mr. Gordon Brown asked the Secretary of State for Education and Science what is his estimate of the numbers of 1987 April school leavers who are to sit O-level and CSE examinations. Mr. Dunn Information for the academic year 1986–87 is not available. There were 15,300 pupils reported as leaving English schools in the spring term of 1985 who attempted GCE O-level or CSE examinations in the summer of that year.